10 Commits

Author	SHA1	Message	Date
Christian Groessler	85170998ad	more atarixl linker cfg file cleanups; adapt atarixl-overlay.cfg	2013-09-13 21:47:39 +02:00
Christian Groessler	5caf6c8854	atarixl linker cfg file cleanups; set default load address to 400 for atarixl	2013-09-13 20:29:24 +02:00
Christian Groessler	8bc4b4c636	add code to add free shadow memory to heap (currently disabled)	2013-09-11 22:43:35 +02:00
Christian Groessler	21e6654524	adjust size of SRPREP to account for 1K aligned character generator ... (not page aligned as I thought before)	2013-09-04 22:25:29 +02:00
Christian Groessler	d3d7499faa	Remove saving and restoring of zeropage variables. ... Merge remote-tracking branch 'upstream/master' Conflicts: cfg/atarixl.cfg libsrc/atari/crt0.s	2013-07-03 11:38:28 +02:00
Christian Groessler	7ebaec1802	Don't save and restore the zero page locations used. ... Saves 19 bytes code (in the exe file) and reduces memory footprint of the program by 45 bytes (code & bss).	2013-07-02 19:55:00 +02:00
Christian Groessler	85dc09fd9f	add LOWBUFS segment	2013-06-12 13:26:26 +02:00
Christian Groessler	164fb56580	move ZPSAVE into area already saved by 2nd load chunk	2013-05-31 01:35:19 +02:00
Christian Groessler	34cf7657e8	Add two load chunks: ... - First chunk checks system (if it's XL and memory is ok). - Second chunk contains the contents for the shadow memory beneath the ROM and copies the contents to their destination address. It also moves the screen memory to low memory in front of the program.	2013-05-30 02:26:15 +02:00
Oliver Schmidt	98c47d1877	Introduced target 'atarixl'. ... The target 'atarixl' is to be used for Atari XL (and better) machines. It will disable the OS ROM and enable the Shadow RAM available on those machine. Note: This commit is only the inital step towards for this goal that just replicates the target 'atari' as a starting point!	2013-05-28 21:56:37 +02:00